Drinking straw



FIG. 1 is a front elevational view of a drinking straw showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view, the left side elevational view being a mirror image thereof; and,

FIG. 5 is a rear elevational view thereof. 

The ornamental appearance for a drinking straw, as shown and described. 